Perhaps you should try some spelling variations:
bulgariae » bulgaria, bulgarie, bulgarians, bulgareiae, vulgariae, bulgariaiae
bulgaricae » bulgaria, bulgarie, bulgarischen, bulgariae, bulgarische, bulgariene, bulgareicae, vulgaricae, bulgariaicae
bulgarische » bulgarischen, ungarische, bulgareische, vulgarische, bulgariaische
bulgarian » bulgaria, hungarian, bulgareian, vulgarian, bulgariaian
bulgarica » bulgaria, bulgarisch, bulgarien, bulgareica, vulgarica, bulgariaica
bulgareeiae » bulgareeeiae, vulgareeiae, bulgariaeeiae
bulgar » bulgare, vulgar, bulgaria
bulger » bulge, bulges

You may be able to get more results by adjusting your search query.

• If you are trying to use Boolean operators, they must be ALL CAPS: (((bulgariae OR bulgareeiae) OR ((bulgaricae OR bulgarische) OR (bulgarian OR bulgarica))) OR (bulgar OR bulger)).
• Adding a wildcard symbol may retrieve word variants: (((bulgariae or bulgareeiae) or ((bulgaricae or bulgarische) or (bulgarian or bulgarica))) or (bulgar or bulger))*.